88250334da
It was kind of ugly to have this kind of special flag directly in link.od; now we detect whether it's available. This also gives a project the ability to override the flag in some other way if they want. As a result, rc/shlib.rc needs to be included in all.rc.od if you want to create or link against shared libraries. While we're here, also add -Wl,-z,origin on platforms where it works. This is apparently needed for FreeBSD 8.0 at least, and probably other platforms. Reported-by: Wayne Scott <wsc9tt@gmail.com>
55 lines
1.2 KiB
Text
55 lines
1.2 KiB
Text
. ./redoconf.rc
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rc_include rc/CC.rc
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prog='
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#include <stdlib.h>
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void f() { atoi(""); }
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'
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try_unix_style() {
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(
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appendln CFLAGS "-fPIC"
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appendln LDFLAGS "-shared"
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appendln LDFLAGS "-Wl,-soname,x.so"
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RCC_NO_MAIN=1 rc_compile cc link "$prog"
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)
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}
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try_macos_style() {
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(
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appendln CFLAGS "-fPIC"
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appendln LDFLAGS "-dynamiclib"
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appendln LDFLAGS "-current_version"
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appendln LDFLAGS "1.0"
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RCC_NO_MAIN=1 rc_compile cc link "$prog"
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)
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}
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if [ -n "$STATIC" ]; then
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echo "--enable-static specified; not building shared libraries." >&2
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rc_replaceln HAVE_SHLIB "STATIC"
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elif [ -n "$NOSHARED" ]; then
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echo "--disable-shared specified; not building shared libraries." >&2
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rc_replaceln HAVE_SHLIB "STATIC"
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elif try_unix_style; then
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rc_replaceln HAVE_SHLIB UNIX
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elif try_macos_style; then
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rc_replaceln HAVE_SHLIB MACOS
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else
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echo "Not building shared libraries on this platform." >&2
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rc_replaceln HAVE_SHLIB "STATIC"
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fi
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if [ "$HAVE_SHLIB" != "STATIC" ]; then
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x='-Wl,-z,origin'
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if (appendln LDFLAGS "$x" && rc_compile cc link); then
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rc_appendln LDFLAGS "$x"
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fi
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x='-Wl,-rpath,$ORIGIN'
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if (appendln LDFLAGS "$x" && rc_compile cc link); then
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rc_appendln LDFLAGS "$x"
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fi
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fi
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rc_save
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